No, not recommended! Hands off !!!

Did I want to buy only this adapter because of its relatively low price, but after I read all sorts of problems (especially that he occasionally very difficult to's would bayonet or the lens on this adapter), I wanted but the Olympus counterpart MMF-3 treat.
Somehow reason has but then triumphed, and I did it. Well, what can I say: it fits like butter (I repeat: buttery soft!) To the camera, and just fits my ZUIKO 12-60 to the adapter. This does not mean that what is shaking. On the contrary, everything is stuck. Also, the AF also works perfectly with my E-M1.
CONCLUSION:
Maybe I was just lucky that it worked so well. Or maybe the manufacturing tolerances have been improved. Anyway, I can recommend this highly enough Adapter. Sorry, Olympus! ;-)

So, update on 11.22.2014: I rate the product only with 1 star and withdraw my recommendation, connected with the Council, must be access to the original !!!

Why?

1. My adapter and lens could shift 2-3mm on the camera bayonet!
2. the viewfinder image always remained black again despite the camera turned on, so I had to solve the adapter and fix it again, so that the contact was given again.
3. The pet peeve was that with my previous ZUIKO 12-60 occurred at 12mm and maximum aperture massive edge blurring on both edges (right / left) in the middle of what was gone until about visor 6. In order to work noise-free even in low light, you need known low-Iso and possible open aperture or at most minimal dimmed - forget 'It Here!
Meanwhile, I have the MMF-3 of Oly and everything is perfect!